#4573CC#4573CC

#4573CC is a mid, vivid blue. Relative luminance 0.179; OKLCH L 56.8% C 0.147 H 262.2°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#4573CC
RGB	rgb(69, 115, 204)
HSL	hsl(220, 57%, 54%)
HSV	hsv(220, 66%, 80%)
CMYK	cmyk(66.2%, 43.6%, 0%, 20%)
CIE-LAB	lab(49.36, 13.09, -50.87)
CIE-LCH	lch(49.36, 52.52, 284.43°)
OKLab	oklab(56.77% -0.0199 -0.1453)
OKLCH	oklch(56.77% 0.147 262.2)
XYZ	xyz(19.4802, 17.8844, 59.5405)
Luminance	0.1789 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4573CC #CC9E45

analogous

#45B6CC #4573CC #5A45CC

triadic

#4573CC #CC4573 #73CC45

tetradic

#4573CC #CC45B6 #CC9E45 #45CC5A

square

#4573CC #CC45B6 #CC9E45 #45CC5A

split-complementary

#4573CC #CC5A45 #B6CC45

monochromatic

#203E76 #2E57A6 #4573CC #7597D9 #A5BBE6

Accessibility & contrast

On white

4.59

#4573CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#4573CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4573CC

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4573CC	#FFFFFF	#000000	##FFFFFF
##4573CC	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#497CCF

Deuteranopia (green-blind)

#3270CA

Tritanopia (blue-blind)

#008795

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4573cc;
/* rgb */ color: rgb(69, 115, 204);
/* oklch */ color: oklch(56.8% 0.147 262.2);

Tailwind

colors: {
  custom: {
    50: '#869adc',
    500: '#4573cc',
    950: '#000000',
  },
}

SCSS

$custom: #4573cc;
$custom-light: #869adc;
$custom-dark: #000000;

JSON

{
  "hex": "#4573cc",
  "rgb": {
    "r": 69,
    "g": 115,
    "b": 204
  },
  "hsl": {
    "h": 219.556,
    "s": 56.962,
    "l": 53.529
  },
  "oklch": {
    "l": 0.56767,
    "c": 0.14664,
    "h": 262.2
  },
  "luminance": 0.17886
}

Semantic roles & 50–950 ramp

primary

#4573CC

secondary

#D3C099

accent

#AC48E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4573CC

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →